Machine Maintenance

Question 1

Easiest way to guard your investment in you equipment is to?

Answer 1

Perform regular maintenance.

Question 2

What suffers when machinery is not properly maintained?

Answer 2

Physical safety

Quality of work

Question 3

Scheduled maintenance refers to?

Answer 3

Predetermined timetable that states intervals which maintenance tasks take place.

Question 4

Preventative maintenance refers to?

Answer 4

Doing regular maintenance to prevent a break down.

Question 5

Important to read before moving a piece of machinery?

Answer 5

Manual so you know where you suppose to lift it from or how.

Question 6

Assists in levelling and prevent further vibration when the machine is in operation?

Answer 6

Stiff Rubber Pads

Question 7

Most suppliers of machinery will offer a package that covers what?

Answer 7

Parts and Labour on the machine however if it has not been properly maintained they will not cover it and your warranty will be voided.

Question 8

What’s a Sign off sheet?

Answer 8

Written confirmation of requested maintenance was performed and is functioning properly.

Question 9

Critical for producing a quality machined surface in wood?

Answer 9

Sharp Knives

Question 10

KMPI Formula?

Answer 10

RPM x Number of knives / 12 x Feed rate (ft/min)

Question 11

Dull knives may result in ?

Answer 11

Machine burn

Chipped/Torn grain

Question 12

If the cutter develops a loss of clearance angle because it is blunted it may?

Answer 12

Compress the surfaces fibers

Question 13

What is a Gib? what does it do?

Answer 13

Steel bar that sits in a slot in the cylindrical cutterhead.

Applies uniform and positive pressure along the entire length of the knife.

Question 14

Describe Gib bolts?

Answer 14

Usually have a domed top and hexagonal shape

Question 15

The slot machined in the cutter head that receives the Gib and Knife is milled with?

Answer 15

Slopping sides so that the slot is narrower in the front.

Question 16

How is a Gib face machined?

Answer 16

Machined with a curve or a ramp that approaches close to the cutting edge of the knife

Question 17

What does the shape and position of the gib also allow it to do?

Answer 17

Acts as a chip breaker and chip limiter.

Question 18

Indexing refers to?

Answer 18

Adjustment of the knife to bring it into line with the cutting circle.

Question 19

What is a cutting circle?

Answer 19

It describes the maximum extent or projection of the circular path through which all knives run.

The outer edge of the knife determines the cutting circle

Question 20

Indexing may be done manually by?

Answer 20

Using a magnet to draw out the knife to its proper location while you tighten it in place.

Question 21

In some jointers and planers what can adjust the indexing of each knife?

Answer 21

Allen key can be turned

Question 22

Assists you in placing knives into a cutter head?

Answer 22

Location pins

Allow for a knife to be quickly changed and bring the knife into the proper position.